Electrical Problems
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New User
Joined: Mar 2003
Posts: 3
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Electrical Problems
Hi,
1988 F150 5.0 liter EFI
No power at the coil
No Fuel pump activity
Will turn over from Starter Relay
Will not turn over from Key
When key is in "run" position, no accessories
When hotwired from + battery to +side of coil, asseccories came on...no start though from key
Have replaced
Ignition switch
EEC relay
Fuel pump relay
Have power to ignition switch (two yellow wires)
Have power to/through clutch safety switch
Have power to/through Fuel inertia switch
Is there a ground under the car, connected to the fuel circuit that may be making this happen?
Can I run 12V directly to the fuel pump (single tank system) and test the fuel pump??
HELP PLEASE
Thanx
Rich
1988 F150 5.0 liter EFI
No power at the coil
No Fuel pump activity
Will turn over from Starter Relay
Will not turn over from Key
When key is in "run" position, no accessories
When hotwired from + battery to +side of coil, asseccories came on...no start though from key
Have replaced
Ignition switch
EEC relay
Fuel pump relay
Have power to ignition switch (two yellow wires)
Have power to/through clutch safety switch
Have power to/through Fuel inertia switch
Is there a ground under the car, connected to the fuel circuit that may be making this happen?
Can I run 12V directly to the fuel pump (single tank system) and test the fuel pump??
HELP PLEASE
Thanx
Rich
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
Electrical Problems
Since you know you have power to the ignition switch, starter interrupt, and FP, it has to be a mechanical problem between the ignition switch and the ignition lock cylinder (where you put the key). Pull the column shroud and observe the pushrod on the R side as you turn the key back & forth. If it doesn't move, the gear on the lock cylinder that pushes it must be broken or somehow disconnected.
Immediately under the key and slightly rearward, is there a small hole pointing up into the area that the key goes like this?
Immediately under the key and slightly rearward, is there a small hole pointing up into the area that the key goes like this?
Last edited by steve83; Mar 3, 2003 at 07:59 PM.
